Major Asian markets gained along with the dollar and crude oil prices following two days of declines that interrupted a powerful advance over the last month. Japanese exporters like Sony and Sharp helped lead the way.

Japan's ruling party is seeking a stimulus package that is substantially bigger than originally announced, involving 15 trillion yen ($150.4 billion) in new fiscal spending. The measures, should they win final approval, would equal some 3 percent of the country's gross domestic product.

Asia's largest economy has become catatonic since Western demand for cars, electronics and other exports crucial to its growth evaporated in the last year, forcing companies big and small to make drastic cuts to production and staff.

But Japan's machinery orders — an indicator of how much the country's companies plan to spend — offered a glimmer of hope after rising for the first time in five months. Core private sector machinery orders grew 1.4 percent in February from the previous month to 728.1 billion yen ($7.3 billion), the government said.

There was also upbeat data from China where auto sales hit a monthly record of 1.11 million vehicles in March, exceeding U.S. sales for the third month in a row, as tax cuts and rebates for small car purchases lured buyers back into showrooms.

Investors were growing more confident, but any downbeat news from U.S. companies reporting earnings in the coming weeks or about Asia's economies could quickly sour sentiment.

"Things are stabilizing to a greater extent, but the economic situation hasn't entirely improved overall," said Lucinda Chan, a director at Macquarie Private Wealth in Sydney.

Earlier in Asia, Japan's Nikkei 225 stock average added 321.05 points, or 3.7 percent, to 8,916.06 for its highest close in three months, while Hong Kong's Hang Seng climbed 426.55, or 3 percent, to 14,901.41.

Overnight in New York, insurance and technology shares led Wall Street higher in a volatile day, lifted by a deal merging two major homebuilders and news the government was ready to extend aid to battered life insurance firms.